Answer:
m/s
Explanation:
One 'm' and one 's' in the numerator and the denominator 'cancel out' and you are left with m / s
It’s A. Land heats up and cools quickly then water
Answer:
Sample A
Explanation:
Molarity of a solution can be calculated using the formula:
Molarity = number of moles (mol) ÷ volume (vol)
For Sample A:
V = 300ml = 300/1000 = 0.3 L
Molarity = 1M
n = number of moles (mol)
1 = n/0.3
n = 0.3moles
For Sample B:
V = 145 mL = 145/1000 = 0.145L
Molarity = 1.5 M
n = number of moles
1.5 = n/0.145
n = 1.5 × 0.145
n = 0.22 moles
Based on the above results (moles), sample A with 0.3 moles contains the larger concentration of sodium chloride.
Answer:
Explanation:
Relation of with is given by the formula:
where,
= equilibrium constant in terms of partial pressure
= equilibrium constant in terms of concentration
R = Gas constant
T = temperature
= change in number of moles of gas particles =
when = 0
a)
= change in number of moles of gas particles =
b)
= change in number of moles of gas particles =
c)
= change in number of moles of gas particles =
d)
= change in number of moles of gas particles =
Thus for reaction , , as = 0
Answer:Increasing the temperature increases reaction rates because of the disproportionately large increase in the number of high energy collisions. It is only these collisions (possessing at least the activation energy for the reaction) which result in a reaction.
Explanation: